package com.sky.utils;

import com.alibaba.fastjson.JSONObject;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * Http工具类
 */
public class HttpClientUtil {

    static final  int TIMEOUT_MSEC = 5 * 1000;

    /**
     * 发送GET方式请求
     * @param url
     * @param paramMap
     * @return
     */
//    public static String doGet(String url,Map<String,String> paramMap){
//        // 创建Httpclient对象
//        CloseableHttpClient httpClient = HttpClients.createDefault();
//
//        String result = "";
//        CloseableHttpResponse response = null;
//
//        try{
//            URIBuilder builder = new URIBuilder(url);
//            if(paramMap != null){
//                for (String key : paramMap.keySet()) {
//                    builder.addParameter(key,paramMap.get(key));
//                }
//            }
//            URI uri = builder.build();
//
//            //创建GET请求
//            HttpGet httpGet = new HttpGet(uri);
//
//            //发送请求
//            response = httpClient.execute(httpGet);
//
//            //判断响应状态
//            if(response.getStatusLine().getStatusCode() == 200){
//                result = EntityUtils.toString(response.getEntity(),"UTF-8");
//            }
//        }catch (Exception e){
//            e.printStackTrace();
//        }finally {
//            try {
//                response.close();
//                httpClient.close();
//            } catch (IOException e) {
//                e.printStackTrace();
//            }
//        }
//
//        return result;
//    }
    public  static  String doGet(String url,Map<String,String>paramMap){
        CloseableHttpClient httpClient = HttpClients.createDefault();
        String result="";
        CloseableHttpResponse closeableHttpResponse=null;

        try {
            URIBuilder builder=new URIBuilder(url);
            if (paramMap!=null){
                for (String key : paramMap.keySet()) {
                    builder.addParameter(key,paramMap.get(key));
                }
            }
            URI uri=builder.build();
            HttpGet httpGet = new HttpGet(uri);
            closeableHttpResponse = httpClient.execute(httpGet);

            if(closeableHttpResponse.getStatusLine().getStatusCode()==200){
                result =EntityUtils.toString(closeableHttpResponse.getEntity());
            }
        } catch (URISyntaxException e) {
            throw new RuntimeException(e);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        finally {
            try {
                closeableHttpResponse.close();
                httpClient.close();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return  result;
    }

    /**
     * 发送POST方式请求
     * @param url
     * @param paramMap
     * @return
     * @throws IOException
     */
    public static String doPost(String url, Map<String, String> paramMap) throws IOException {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String resultString = "";

        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);

            // 创建参数列表
            if (paramMap != null) {
                List<NameValuePair> paramList = new ArrayList();
                for (Map.Entry<String, String> param : paramMap.entrySet()) {
                    paramList.add(new BasicNameValuePair(param.getKey(), param.getValue()));
                }
                // 模拟表单
                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);
                httpPost.setEntity(entity);
            }

            httpPost.setConfig(builderRequestConfig());

            // 执行http请求
            response = httpClient.execute(httpPost);

            resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
        } catch (Exception e) {
            throw e;
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return resultString;
    }

    /**
     * 发送POST方式请求
     * @param url
     * @param paramMap
     * @return
     * @throws IOException
     */
    public static String doPost4Json(String url, Map<String, String> paramMap) throws IOException {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String resultString = "";

        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);

            if (paramMap != null) {
                //构造json格式数据
                JSONObject jsonObject = new JSONObject();
                for (Map.Entry<String, String> param : paramMap.entrySet()) {
                    jsonObject.put(param.getKey(),param.getValue());
                }
                StringEntity entity = new StringEntity(jsonObject.toString(),"utf-8");
                //设置请求编码
                entity.setContentEncoding("utf-8");
                //设置数据类型
                entity.setContentType("application/json");
                httpPost.setEntity(entity);
            }

            httpPost.setConfig(builderRequestConfig());

            // 执行http请求
            response = httpClient.execute(httpPost);

            resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
        } catch (Exception e) {
            throw e;
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return resultString;
    }
    private static RequestConfig builderRequestConfig() {
        return RequestConfig.custom()
                .setConnectTimeout(TIMEOUT_MSEC)
                .setConnectionRequestTimeout(TIMEOUT_MSEC)
                .setSocketTimeout(TIMEOUT_MSEC).build();
    }

}
